There will be a lot of Fortified BFBs. On top of all those BADs, intense farming prior to Round 80+ would be absolutely essential to afford all those super powerful towers. I don't think 4th Tier Temple would be enough to beat Round 95, though a maxed Support Temple would be useful on top of other defense, especially Call to Arms / Homeland Defense (for extra attack speed ability), Icicle Impale (for blimp slows), Bloon Crush (for the DDTs and Fortified BFBs), Blooncineration (fortified BFBs and general big DoT DPS), and maxed Grandmaster Ninja (for DPS) would be super helpful. Overclock would be very vital too.
It appears that Rounds 80+ are like upsized standard Round 100+ Freeplay Rounds except with no ultraclumped Purples.
Perhaps a double health Fortified BAD would be an armored BAD with absolutely full armor, from tip to tailend. Triple health Fortified BADs might have everything that an armored BAD would have except with a lustrous semi-metallic coating.
On most maps, Round 95 should be possible, but it would take a lot of prior strategizing on early-game before those Tier 4 Temples can be bought.
Without farming on hard maps, 95 is completely impossible. The sacrifices used could also be quite powerful in their own right. The final upgrade itself is only $100k, meaning you only have to survive 5-10 rounds before buying it.
Like you could have a Grandmaster Ninja with 20 shinobis, a Primary Expertise, another 2 Spike Storms or a Permaspike, and a Blooncineration or something by 75-80 (or 60 with enough farming), as well as the sun avatar required, and those towers together can beat normal rounds 98-100, or 98-109 on easy maps (Expertise can easily deal with the purple stacks). The round 80 BAD is weaker by about half, by the way, because ramping still doesn't start until 80.
XXXL Trap would be especially OP in this mode, perhaps even enabling a 4th tier temple to solo 95 on easy maps through capturing all the fortified BFBs, leaving only the BADs for the temple. You could even sell and rebuy to capture the DDTs or ZOMGs from some of them.